Identification of a Two-Coordinate Iron(I)–Oxalate Complex
Publikation: Beitrag in Fachzeitschrift › Forschungsartikel › Beigetragen › Begutachtung
Beitragende
Abstract
Exotic oxidation states of the first-row transition metals have recently attracted much interest. In order to investigate the oxidation states of a series of iron–oxalate complexes, an aqueous solution of iron(III) nitrate and oxalic acid was studied by infrared free liquid matrix-assisted laser desorption/ionization as well as ionspray mass spectrometry. Here, we show that iron is not only detected in its common oxidation states +II and +III, but also in its unusual oxidation state +I, detectable in both positive-ion and in negative-ion modes, respectively. Vibrational spectra of the gas phase anionic iron oxalate complexes [FeIII(C2O4)2]−, [FeII(C2O4)CO2]−, and [FeI(C2O4)]− were measured by means of infrared photodissociation spectroscopy and their structures were assigned by comparison to anharmonic vibrational spectra based on second-order perturbation theory.
Details
Originalsprache | Englisch |
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Aufsatznummer | e202117855 |
Fachzeitschrift | Angewandte Chemie - International Edition |
Jahrgang | 61 |
Ausgabenummer | 16 |
Publikationsstatus | Veröffentlicht - 11 Apr. 2022 |
Peer-Review-Status | Ja |
Externe IDs
PubMed | 35088489 |
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Schlagworte
ASJC Scopus Sachgebiete
Schlagwörter
- IR-FL-MALDI, Iron Complexation, Iron(I), IRPD Spectroscopy, Unusual Oxidation State